You are the Princess Shireen of the House Baratheon, and you are my daughter.

Next year, all of Earth's heroes will unite as Thanos, the Mad Titan, finally completes his Infinity Gauntlet. It's not just the survival of humanity at stake, but also #Marvel's ability to deliver a truly Earth-shattering, genre-defining superhero movie.

More or less everything we've seen in the #MCU since The Avengers has been building to Infinity War in some way — heroes like Doctor Strange and Ant-Man have been introduced to beef up the skillset of Earth's protectors, while Guardians Of The Galaxy and Age Of Ultron teased the immense power of those Infinity Stones.

So #InfinityWar has to be more than big — it has to be the biggest, the apex, the mother of all comic book movies. No pressure. Let's take a look at everything we know so far, from the latest Avengers: Infinity War news, rumors and spoilers to fan theories, trailers and release dates.

Avengers: Infinity War Trailer

If it obeys a similar timescale to most Marvel movies, expect to see the first Avengers: Infinity War trailer around December 2017, potentially preceded by teaser trailer a month or two in advance. We'll have the Infinity War trailer the second it drops.

Until then, check out the above behind-the-scenes "teaser" trailer from Marvel.

Avengers: Infinity War News, Rumors & Spoilers

All Avengers: Infinity War news, along with plausible rumors and spoilers, will be posted right here — find the most recent updates at the top.

Updated 05/05/17: Valkyrie Joins The Cast Of Infinity War

Soon to make a big impact in #ThorRagnarok, it seems Tessa Thompson's fearsome warrior Valkyrie isn't done with the MCU just yet.

An Instagram user posted a selfie taken with Thompson in Edinburgh, where the Infinity War shoot is currently ongoing. That seemingly guarantees that Valkyrie makes it out of Ragnarok alive as an ally to Thor, and could also be a sign that there'll be a fourth Thor movie somewhere down the line. How much bigger can this cast get?

April: Infinity War Set Pics, Avengers 4 Title Update

Infinity War continues to shoot in Edinburgh, and this week a huge blaze scene was filmed on the city's cobbled streets. No word on which cast members were present, but looks like there'll be at least one major action set piece to look out for there.

Meanwhile, Kevin Feige has shot down rumors that the still-untitled Avengers 4 will be named Avengers: Infinity Gauntlet. He did say, though, that its title is a spoiler for Infinity War, hence why we can't know it yet. Kevin, you big old tease!

Previously: Infinity War Begins Shooting In New York From May

Omega Underground discovered a casting call for extras on the Infinity War set when the shoot relocates to New York City from May 19th. Whatever was being shot in Scotland (some kind of flashback/action sequence involving Vision and Black Widow, among others), the Big Apple is more familiar territory for the Avengers.

Chances are most of the Civil War cast will be involved in the New York shoot, and we'll probably be paying a visit to Stark Tower, although there's no word yet on whether the Guardians of the Galaxy, Thor or Hulk are Earthbound in Infinity War.

Avengers: Infinity War Release Date

Infinity War started shooting in Scotland on January 23, 2017, and is being shot back-to-back with the untitled fourth Avengers movie.

The Infinity War release date is May 4, 2018, and Avengers 4 follows on May 3, 2019. Still a while to wait, basically, but you bet your ass it'll be worth it.

Avengers: Infinity War Plot & Story Details

Marvel haven't released a synopsis for the Infinity War plot just yet, but it's not too tricky to piece together the basics of the plot from everything we know so far about Thanos and his masterplan.

Essentially, the Avengers — presumably divided into the official, government-sanctioned team lead by Iron Man and the illicit team of fugitives lead by Captain America — will have to find a seriously inventive way to deal with #Thanos, who seems to be on the brink of completing his six-stone Infinity Gauntlet.

Probably won't happen in the movie. [Credit: Marvel Comics]

We know that the action won't just be limited to Earth, and various planets in the vast cosmos will be visited (no word on whether Star-Lord and co. will descend to Earth, but presumably there'll be some interaction with Doctor Strange, Iron Man and the gang) — specifics remain a mystery for now.

Originally, the untitled Infinity War sequel was set to be a 'Part 2,' but directors Anthony and Joe Russo have since claimed it's a standalone story.

Avengers: Infinity War Cast & Characters

The Avengers: Infinity War cast is the biggest ever assembled in a Marvel movie — it's almost easier to list the actors who aren't part of this epic adventure. Here's the list of major names expected to feature — bear in mind more names will likely be confirmed in the weeks ahead:

Robert Downey Jr. as Iron Man — Eight movies deep, Iron Man is still going strong in the MCU. At the close of Civil War he'd called a truce of sorts with Captain America, and we'll see him again in Spider-Man: Homecoming before Infinity War. If there's a major death in this movie, it won't be Tony Stark.

Chris Evans as Captain America — Captain America, the country's most celebrated war hero, ended Civil War in new territory. Now a fugitive, he'll be operating incognito in Infinity War with Black Widow and the gang. Don't be surprised if Nick Fury's reappearance is tied to Cap's criminal status.

Josh Brolin as Thanos — Kevin Feige has stated that Thanos is "almost the main character" of Infinity War. So far we've not had much insight into the mind of the Mad Titan — expect to dive much deeper into what's driving him in this movie.

Scarlett Johansson as Black Widow — Natasha Romanoff was a little more low-key than we've been accustomed to in Civil War. Hopefully we'll see more of her skillset, as in The Avengers and The Winter Soldier, employed in Infinity War.

'Avengers: Age of Ultron' [Credit: Marvel Studios]

Mark Ruffalo as Hulk — Thor: Ragnarok will be the first we see of Bruce Banner since Avengers: Age Of Ultron. Considering that film is set mostly on Asgard and in the wider cosmos, it'll be interesting to see whether Hulk returns to Earth or instead goes up against Thanos in space.

Tom Hiddleston as Loki — We should have a much better idea of the part Loki has to play in Infinity War once we've seen Thor: Ragnarok. The big question for now — will he be fighting on the side of good?

Jeremy Renner as Hawkeye — Despite not having much screen time, Hawkeye actually had some great moments in Civil War. Don't expect him to take centre stage in Infinity War — how much can a man with a bow and arrow actually do with Thanos? — but Renner's typical charisma should be welcome.

Elizabeth Olsen as Scarlet Witch — Scarlet Witch was a massive highlight of Civil War, layers to her character being peeled back to give her more of an identity as a member of the Avengers. Hopefully we'll get some exploration of her powers and, just perhaps, some interaction with Doctor Strange?

Chris Pratt as Star-Lord — According to James Gunn, Guardians Of The Galaxy Vol. 2 won't lead into or connect with Infinity War in any way beyond possible post-credits scenes. Will Star-Lord and the newly-expanded Guardians fight Thanos on Earth or in space? Right now I'd bet on the latter.

Zoe Saldana as Gamora — As the adoptive daughter of Thanos, Gamora (along with Nebula) has a far more intimate knowledge of what makes the Mad Titan tick than anyone else. She could be key to protecting the galaxy from her father.

Karen Gillan as Nebula — Just like Gamora, you'd imagine Nebula could be pretty crucial to identifying Thanos's weakness and finding a way to manipulate that — if she can play nicely with the good guys for long enough.

Vin Diesel as Groot — What's Baby Groot going to contribute to Infinity War? I imagine his weapon of choice is to be cute af, and we will all deal.

Bradley Cooper as Rocket — Just being sarcastic and stuff.

Pom Klementieff as Mantis — Mantis is a new addition to the Guardians in Vol. 2. Her skills as an emotional empath who is also capable (at least in the comics) of astral projection could be pretty useful in going up against Thanos.

Dave Bautista as Drax — Drax is strong, but Thanos is infinitely stronger. He's probably just here to crack a couple of jokes, and I'm cool with that.

Benicio del Toro as The Collector — del Toro's Collector and his wacky, now-ruined hideout filled with interstellar relics was a highlight of Guardians, even though he didn't have much to do. Infinity War will probably take a trip to Knowhere as del Toro's obsessive Collector attempts to get his grubby hands on everything he can before Thanos destroys all the shiny things in the galaxy.

Benedict Cumberbatch as Doctor Strange — Doctor Strange is conveniently in New York, also the base of Tony Stark's Avengers, so expect him to be inducted into the official, government-sanctioned team in Infinity War.

Benedict Wong as Wong — No word yet on exactly why this movie needs Wong, Stephen Strange's mentor, but he did get hired to protect the New York Sanctorum after two weeks training, so I guess all is not learned yet.

Sebastian Stan as Bucky Barnes — As of the Civil War mid-credits scene, Bucky is "under," unable to trust himself in the wake of his Soviet programming rearing its ugly head once again. Now based on Wakanda, we're bound to check in on Black Panther's home planet to see who wakes Bucky, and whether his super-soldier services will be used for good or evil.

Samuel L. Jackson as Nick Fury — It's been way too long since we last checked in with Nick Fury, the MVP of the MCU and quite possibly its greatest character. The big questions are where he's been hiding, why he's been hiding, and to whom he'll give his invaluable assistance in Infinity War — my money's on an illicit alliance with Captain America and the fugitive-Avengers.

Cobie Smulders as Maria Hill — Fury's loyal right-hand woman knows him better than he knows himself, so it'll be a relief to have Agent Maria Hill back to watch out for her boss and do all she can to keep the Avengers safe from the Mad Titan.

What can you say about a cast about like that? It's basically the biggest lineup of A-listers ever assembled in one movie and it's not hard to guess where a good chunk of that epic $250m budget is going.

Expect more returning cast members (Chadwick Boseman's Black Panther seems like a strong bet, plus War Machine and Falcon) and a handful of new Infinity War characters (potentially Brie Larson's debut as Captain Marvel, although it might be a little early for that) to be confirmed as the shoot continues into Spring.

Don't hold your breath for Netflix's Defenders to show up — Marvel seems to want to keep the TV and cinematic heroes separate.

Avengers: Infinity War Filming Locations

Infinity War is shooting back-to-back with the untitled fourth Avengers movie in Scotland and Atlanta, US. The shoot began January 23, 2017 at Pinewood Studios Atlanta, and will add location shoots in Edinburgh, Glasgow and the Scottish Highlands from February 28.

On May 19, the shoot moves to New York City. It's expected to wrap in October.

Avengers: Infinity War Spoilers

If you're the type of person who needs spoilers before a movie hits theaters, you can probably expect a few Infinity War spoilers to leak out online toward the middle or end of this year.

Personally I'd suggest going in blind — this is the kind of movie you want to be surprised by, especially as at least one or two heroes will most likely be killed at the hand of Thanos. Still, any major, credible spoilers will be posted here nearer the time.

Avengers: Infinity War Theories

Major Infinity War Tease In The Black Panther Post-credits?

It's early days so Avengers: Infinity War theories are a little thin on the ground right now, but here's one I concocted myself — seeing as Black Panther started shooting at Pinewood Studios Atlanta on January 21, 2017, right alongside Infinity War, you'd expect some cast crossover.

Chadwick Boseman isn't confirmed for Infinity War yet, but I reckon there's a high chance the post-credits scene of Black Panther (which hits theaters February 2018) will feature T'Challa being tapped to join forces with one of the two Avengers factions for the war with Thanos.

If that happens, Marvel will probably use the scene to tease a major, new detail about the movie to really get that hype train rolling. It could even be the moment at which we meet Nick Fury again. Fingers crossed...

Avengers: Infinity War Soundtrack

Alan Silvestri, the composer who created the brilliant score for The Avengers (relive his work on that film below), will return for Infinity War.

Where Can I Watch Infinity War Online?

Good luck, son! It goes without saying that seeing as the film is over a year from hitting theaters, it'll be a while before you can watch Avengers: Infinity War online. Disney have a deal with Netflix which might mean that the movie is available to stream some time toward the end of 2018 or early the following year, but nothing's confirmed yet. Expect a Digital HD and Blu-ray release around October 2018.